TITAN II - SYSTEM IS REVIEWED ON THE 15TH ANNIVERSARY OF ITS OPERATIONAL READINESS. YC-141B AERIAL DELIVERY TESTS - "STRETCHED" VERSION OF THE C-141 STARLIFTER IS EVALUATED ON ITS ABILITY TO DELIVER CARGO AND PARATROOPS BY AIRDROP. YC-141B AERIAL REFUELING TESTS - PERSONNEL FROM THE AIR FORCE FLIGHT TEST CENTER AND MAC PILOTS PERFORM THE TESTS. AERIAL CANNON DAMAGE - HITS ON POTENTIAL ENEMY AIRCRAFT FUEL TANKS ARE INVESTIGATED UNDER SIMULATED ALTITUDE CONDITIONS AT ARNOLD ENGINEERING DEVELOPMENT CENTER. NON-DESTRUCTIVE EVALUATION - DEMONSTRATION OF NEW MATERIALS FOR AIRCRAFT STRUCTURES WITHOUT DESTROYING THE MATERIAL.